Officers from the Bedfordshire, Cambridgeshire and Hertfordshire (BCH) Road Policing Unit are appealing for witnesses and information following a road traffic collision in South Oxhey.
The incident occurred in Prestwick Road, just before 11pm on Sunday, September 5.
For reasons unknown at this time, a black BMW 335i lost control and collided with several parked vehicles.
The driver was taken to hospital where he remains in a serious but stable condition.
Sergeant Aaron Murphy, from the BCH Road Policing Unit, said: “Enquiries are continuing at this time to establish the circumstances around the collision. As part of this, we are appealing for any witnesses to come forward.
“Did you see the collision itself, or did you see the vehicle being driven in the area prior to it?
“We’d be particularly keen to hear from anyone who captured dash cam footage. If you can help, please contact us.”
Anyone with information asked to please email email@example.com
You can also report information online at herts.police.uk/report, speak to an operator in the Force Communications Room via our online web chat at herts.police.uk/contact or call the non-emergency number 101, quoting ISR 767 of 5 September.